FreeBSD Manual Pages
COSMICCALCULATOR(1) User Commands COSMICCALCULATOR(1) NAME CosmicCalculator - estimate cosmological values SYNOPSIS astcosmiccal [OPTION...] DESCRIPTION CosmicCalculator is part of GNU Astronomy Utilities 0.24. CosmicCalculator will do cosmological calculations. If no redshfit is specified, it will only print the main input parameters. If only a redshift is given, it will print a table of all calculations. If any of the single row calculations are requested, only their values will be printed with a single space be- tween each. For more information, please run any of the following commands. In particu- lar the second contains a very comprehensive explanation of CosmicCalcula- tor's invocation: expected input(s), output(s), and a full description of all the options. All options and their values: $ astcosmiccal -P Inputs/Outputs and options: $ info astcosmiccal Full section in manual/book: $ info CosmicCalculator Full Gnuastro manual/book: $ info gnuastro If you couldn't find your answer in the manual, you can get direct help from experienced Gnuastro users and developers. For more information, please run: $ info help-gnuastro CosmicCalculator options: Input: -H, --H0=FLT Current expansion rate (Hubble constant). -l, --olambda=FLT Current cosmological cst. dens. per crit. dens. -m, --omatter=FLT Current matter density per critical density. -O, --obsline=STR,FLT Redshift from line and observed wavelength. -r, --oradiation=FLT Current radiation density per critical density. -y, --velocity=FLT Velocity of interest in km/s. -z, --redshift=FLT Redshift of interest. Basic cosmology calculations -a, --absmagconv Conversion to absolute magnitude (no unit). -A, --angulardiamdist Angular diameter distance (Mpc). -b, --lookbacktime Look back time to z (Ga: Giga Annum). -c, --criticaldensity Critical density at z (g/cm^3). -C, --criticaldensitynow Critical density now (g/cm^3). -d, --properdistance Proper distance to z (Mpc). -e, --usedredshift Used redshift in this run. -g, --age Age of universe at z (Ga: Giga Annum). -G, --agenow Age of universe now (Ga: Giga Annum). -L, --luminositydist Luminosity distance to z (Mpc). -s, --arcsectandist Tangential dist. for 1arcsec at z (physical kpc). -u, --distancemodulus Distance modulus at z (no units). -v, --volume Comoving volume (4pi str) to z (Mpc^3). -Y, --usedvelocity Used velocity (in km/s) for this run. Spectral lines -i, --lineatz=STR/FLT Wavelength of line (name or wavelength) at z. --lineunit=STR Unit ('angstrom', 'nm', 'microm' or 'm'). --listlines List pre-defined lines at rest frame. --listlinesatz List pre-defined lines at the given redshift. Operating modes: -?, --help give this help list --checkconfig List all config files and variables read. --cite BibTeX citation for this program. --config=STR Read configuration file STR immediately. --config-prefix=STR Custom prefix of option names config files. --lastconfig Do not parse any more configuration files. --minmapsize=INT Min. bytes to avoid RAM automatically. --onlyversion=STR Only run if the program version is STR. -P, --printparams Print parameter values to be used and abort. --quietmmap Don't print mmap'd file's name and size. -S, --setdirconf Set default values for this directory and abort. --usage give a short usage message -U, --setusrconf Set default values for this user and abort. -V, --version print program version Mandatory or optional arguments to long options are also mandatory or op- tional for any corresponding short options. GNU Astronomy Utilities home page: http://www.gnu.org/software/gnuastro/ REPORTING BUGS Report bugs to bug-gnuastro@gnu.org. COPYRIGHT Copyright (C) 2015-2025 Free Software Foundation, Inc. License GPLv3+: GNU General public license version 3 or later. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Written/developed by Mohammad Akhlaghi SEE ALSO The full documentation for CosmicCalculator is maintained as a Texinfo man- ual. If the info and CosmicCalculator programs are properly installed at your site, the command info CosmicCalculator should give you access to the complete manual. GNU Astronomy Utilities 0.24 November 2025 COSMICCALCULATOR(1)
NAME | SYNOPSIS | DESCRIPTION | REPORTING BUGS | COPYRIGHT | SEE ALSO
Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=astcosmiccal&sektion=1&manpath=FreeBSD+Ports+15.1.quarterly>